BR112020009139A2 - method for configuring resources in device-to-device and terminal device communications - Google Patents

Abstract

This order reveals a method, a terminal device and a network device for configuring resources in D2D communications. The method includes: performing, by a terminal device, detection of resources in at least one carrier based on a first set of parameters to obtain a set of resources available in at least one carrier, where a resource in a set of available resources on each carrier it can be used to transmit a target service; and reporting, by the terminal device, information about the set of resources available on at least one carrier to a network device, where information about the set of available resources is used by the network device to determine a target resource to transmit the service. target. Therefore, the terminal device performs resource detection and reports the set of available resources obtained, so that the network device can allocate an appropriate transmission resource to the terminal device based on information about the set of available resources, thus reducing the interference.

Description

METHOD FOR CONFIGURING RESOURCES IN COMMUNICATIONS DEVICE TO DEVICE, TERMINAL DEVICE, NETWORK DEVICE, STORAGE MEDIA, CHIP AND COMMUNICATION SYSTEM BACKGROUND

[001] This application claims the priority of PCT Patent Application No. PCT / CN2017 / 109970, filed at the Chinese Patent Office on November 8, 2017 and entitled "METHOD, TERMINAL DEVICE AND NETWORK DEVICE FOR CONFIGURING RESOURCES IN D2D COMMUNICATION ", which is incorporated in its entirety into this document as a reference.

[002] This application claims the priority of PCT Patent Application No. PCT / CN2018 / 089285, filed at the Chinese Patent Office on May 31, 2018 and entitled "METHOD,

TERMINAL DEVICE AND NETWORK DEVICE FOR CONFIGURING RESOURCES IN D2D COMMUNICATION ", which is incorporated in its entirety into this document as a reference.

TECHNICAL FIELD

[003] The modalities of this request refer to the field of radio communications and, in particular, to a method, a terminal device and a network device for the configuration of resources in device-to-device (D2D) communications.

RELATED TECHNIQUE

[004] A Vehicle Internet Communications System (IoV), also known as Vehicle for All (V2X) communications system, is a secondary link transmission (SL) technology based on D2D communications. Unlike a conventional Long Term Evolution (LTE) system in which data is received or transmitted via a base station, a Vehicle Internet system performs direct device-to-device communication and therefore has superior spectrum efficiency and latency lower transmission.

[005] Two transmission modes are defined in the Vehicle Internet system: a transmission mode 3 (mode 3) and a transmission mode 4 (mode 4). The transmission resources used by a terminal device using transmission mode 3 are allocated by a network device, but a terminal device using transmission mode 4 can independently select transmission resources. When a group of resources is shared by the terminal device using transmission mode 3 and the terminal device using transmission mode 4, a conflict can occur between a resource allocated by the network device to the terminal device using transmission mode transmission 3 is a resource selected by the terminal device using oThe transmission mode 4. Therefore, an urgent problem to be solved is how the network device efficiently allocates resources to the terminal device while reducing interference.

SHORT DESCRIPTION

[006] Modalities of this application provide a method a terminal device and a network device for configuring resources in D2D communications, so that the network device can efficiently allocate resources to the terminal device while reducing interference.

[007] According to a first aspect, a method for configuring resources in D2D communications is provided, which includes: performing, by a terminal device, detecting resources on at least one carrier based on a first set of parameters to obtain a set of resources available on at least one carrier, where a resource in a set of resources available on each carrier can be used to transmit a target service, and the first set of parameters includes at least one of: information about a resource for perform resource detection, a condition parameter to determine the set of available resources or a transmission parameter of the target service; and report, through the terminal device, information about the set of resources available on at least one carrier to a network device.

[008] Optionally, the target resource is a resource in the set of available resources that is reported by the terminal device and that is on at least one carrier, and the target resource can include one or more resources.

[009] Therefore, in the form of this request, the terminal device detects resources based on a specific transmission parameter, and determines the set of available resources based on a detection result. When reporting the set of resources available to the network device, the terminal device assists the network device in allocating a transmission resource to the terminal device, thereby reducing interference.

[010] According to a second aspect, a method for configuring resources in D2D communications is provided, which includes: receiving, through a network device, information reported by a terminal device about a set of resources available on at least one carrier , in which a resource in a set of resources available on each carrier can be used to transmit a target service; and determining, by the network device, in the set of resources available on at least one carrier, a target resource to transmit the target service.

[011] Optionally, the target resource is a resource in the set of available resources that is reported by the terminal device and that is on at least one carrier, and the target resource can include one or more resources.

[012] Therefore, in the form of this request, the network device can allocate the transmission resource to the terminal device in the set of available resources based on the set of available resources reported by the terminal device. The resource in the set of available resources is obtained by the terminal device based on the detection result and, therefore, the selection, by the network device, of the resource for the terminal device in the set of available resources can significantly reduce the interference caused by and for other terminal devices. According to a third aspect, a terminal device is provided. The terminal device can perform operations of the terminal device in the first aspect or in any optional implementation of the first aspect. Specifically, the terminal device may include a module or unit that is configured to perform the operations of the terminal device in the first aspect or in any possible implementation of the first aspect.

[013] According to a fourth aspect, a network device is provided. The network device can perform network device operations in the second aspect or in any optional implementation of the second aspect. Specifically, the network device may include a module or unit that is configured to perform the operations of the network device in the second aspect or in any possible implementation of the second aspect.

[014] According to a fifth aspect, a terminal device is provided. The terminal device includes a processor, a transceiver and a memory. The processor, transceiver and memory communicate with each other via an internal connection path. The memory is configured to store an instruction, and the processor is configured to execute the instruction stored in memory. When the processor executes the instruction stored in memory, the terminal device is enabled to carry out the method in the first aspect or in any possible implementation of the first aspect, or the terminal device is enabled to implement the terminal device according to the third aspect.

[015] In accordance with a sixth aspect, a network device is provided. The network device includes: a processor, a transceiver, and a memory. The processor, transceiver and memory communicate with each other via an internal connection path. The memory is configured to store an instruction, and the processor is configured to execute the instruction stored in memory. When the processor executes the instruction stored in memory, theThe network device is enabled to perform the method in the second aspect or any possible implementation of the second aspect, or the network device is enabled to implement the network device according to the fourth aspect.

[016] According to a seventh aspect, a computer-readable storage medium is provided. The computer-readable storage media stores a program. The program enables a terminal device to perform the The method for configuring resources in D2D communications according to the first aspect and any of the various implementations of the first aspect.

[017] According to an eighth aspect, a computer-readable storage medium is provided. The computer-readable storage media stores a program. The program enables a network device to perform the method for configuring resources in D2D communications according to the second aspect and any one of several implementations of the second aspect.

[018] According to a ninth aspect, a chip is provided. The chip includes an input interface, an output interface, a processor and a memory. The processor is configured to execute an instruction stored in memory. When the instruction is executed, the processor is enabled to implement the method according to the first aspect or any possible implementation of the first aspect.

[019] According to a tenth aspect, a chip is provided. The chip includes an input interface, an output interface, a processor and a memory. The processor is configured to execute an instruction stored in memory. When the instruction is executed, the processor is enabled to implement the method according to the second aspect or any possible implementation of the second aspect.

[020] In accordance with an eleventh aspect, a computer program product that includes an instruction is provided. When the computer program product runs on a computer, it is enabled to execute the method according to the first aspect or any possible implementation of the first aspect.

[021] According to a twelfth aspect, a computer program product that includes an instruction is provided. When the computer program product is run on a computer, the computer is enabled to execute the method according to the second aspect or any possible implementation of the second aspect.

[022] According to a thirteenth aspect, a communications system is provided. The communications system includes a terminal device and a network device.

[023] The terminal device is configured to: perform resource detection on at least one carrier based on a first set of parameters to obtain a set of resources available on at least one carrier, where a resource in a set of available resources on each carrier can be used to transmit a target service, and the first set of parameters includes at least one of them: information about a resource to perform resource detection, a condition parameter to determine the set of available resources or a parameter of transmission of the target service.

[024] The network device is configured to: receive information reported by a terminal device about a set of resources available on at least one carrier, where a resource in a set of resources available on each carrier can be used to transmit a service target; and determining, in the set of resources available on at least one carrier, a target resource to transmit the target service.

[025] In addition, the terminal device is configured to carry out the method according to the first aspect or any possible implementation of the first aspect, and the network device is configured to carry out the method according to the second aspect or any possible implementation. the second aspect.

BRIEF DESCRIPTION OF THE DRAWINGS

[026] Figure 1 is a structural schematic diagram of an application scenario, according to one modality of this order.

[027] Figure 2 is a structural schematic diagram of another application scenario, according to one modality of this order.

[028] Figure 3 is a schematic flowchart of a method for configuring resources in D2D communications, according to one modality of this request;

[029] Figure 4 is a schematic flowchart of a method for configuring resources in D2D communications, according to another modality of this order;

[030] Figure 5 is a schematic block diagram of a terminal device according to an embodiment of the present application;

[031] Figure 6 is a schematic block diagram of a network device according to an embodiment of the present application;

[032] Figure 7 is a structural schematic diagram of a communications device, according to one embodiment of this application.

[033] Figure 8 is a schematic structural diagram of a chip, according to an embodiment of this application; and

[034] Figure 9 is a structural schematic diagram of a communications system, according to one embodiment of this request.

DETAILED DESCRIPTION

[035] The technical solutions in the modalities of this application are described below with references to the attached drawings.

[036] It should be understood that the technical solutions of the modalities of this application can be applied to the various communication systems, for example, a Global Mobile Communications System (GSM), a Code Division Multiple Access System (CDMA), a Broadband Code Division Multiple Access (WCDMA) system, a Long Term Evolution (LTE) system, an LTE frequency division duplex (FDD) system, a Time Division Duplex system (TDD) of LTE, a Universal Mobile Telecommunication System (UMTS) and an additional 5G communication system.

[037] The present application describes the modalities with reference to a terminal device. The terminal device may alternatively be a user equipment (UE), an access terminal, a user unit, a user station, a mobile site, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, terminal, wireless communications device, user agent or user device. The access terminal can be a cell phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Circuit (WLL) station, a personal digital assistant (PDA), a portable device with a wireless communication function, a computer device, another processing device connected to a wireless modem, a vehicle-embedded device, a device usable close to the body, a terminal device on a future 5G network, a terminal device on a network public land mobile telephone (PLMN) evolved in the future or similar.

[038] This application describes the modalities with reference to a network device. The network device can be a device that communicates with the terminal device. For example, the network device can be a transceiver base station (BTS) in a GSM system or a CDMA system, or it can be a NodeB (NB) in a WCDMA system, or it can be an evolved NodeB (eNB or eNodeB) in an LTE system. Alternatively, the network device may be a relay node, an access point, a vehicle-embedded device, a device that is usable close to the body, a network-side device on a future 5G network, a network-side device on a future evolved PLMN network or the like.

[039] Figures 1 and 2 are schematic diagrams of a possible application scenario according to one modality of this application. Figure 1 illustrates a network device and two terminal devices. Optionally, a radio communications system can include a plurality of network devices and another number of terminal devices can be included in the coverage of each network device. This is not limited in the form of this request. In addition, the radio communications system may additionally include other network entities such as a mobility management entity (MME), a service access port (S-GW), and a data network access port. package (P-GW). However, the modalities of this request are not limited to this.

[040] Specifically, a terminal device 20 and a terminal device 30 can communicate in a D2D communications mode. During D2D communication, terminal device 20 communicates directly with the terminal device via a D2D link, that is, a secondary link (SL). For example, as shown in Figure 1 or Figure 2, terminal device 20 communicates directly with terminal device 30 over a secondary link. In Figure 1, a transmission resource for the communication carried out between the terminal device 20 and the terminal device 30 through the secondary link is allocated by the network device. In Figure 2, a transmission resource for the communication carried out between the terminal device 20 and the terminal device 30 through the secondary link is selected independently by the terminal device, and does not need to be allocated by the network device.

[041] D2D communication can mean Vehicle to Vehicle communication (V2V) or Vehicle to Everything communication (V2X). In V2X communication, X can be any device capable of receiving and transmitting radio, but, without limitation, a wireless device in slow motion, a device incorporated in a fast moving vehicle or a network control node with radio transmission and reception capacity. Understandably, the modalities of this request are mainly applied to a V2X communication scenario, but they are also applicable to any other D2D communication scenarios. This is not limited to the modalities of this application.

[042] In Version 14 of the 3GPP protocol, two transmission modes are defined: a transmission mode 3 (mode 3) and a transmission mode 4 (mode 4). The transmission resource of the terminal device using transmission mode 3 is allocated by a base station. The terminal device performs data transmission on the secondary link using the resource allocated by the base station. The base station can allocate the resource for a single transmission to the terminal device, or it can allocate a semi-static transmission resource to the terminal device. If the terminal device using transmission mode 4 has detection capability, data is transmitted by means of detection and backup. If the terminal device has no detection capability, the terminal device randomly selects a transmission resource from a group of resources. The detection capable terminal device obtains a set of resources available in the resource group through detection, and the terminal device randomly selects a resource in the set to perform data transmission. Due to the fact that a service in the Vehicle Internet system is periodic, the terminal device generally uses a semi-static transmission mode. To be specific, after selecting a transmission resource, oThe terminal device continuously uses the resource over a plurality of transmission periods, thereby reducing resource reselection and a likelihood of resource conflicts. Control information for a current transmission carries information about a resource reserved by the terminal device for the next transmission. Therefore, by detecting the control information of the terminal device, other terminal devices can determine whether the resource has been reserved and used by the terminal device, thus fulfilling the purpose of reducing resource conflicts.

[043] In Version 14 of the 3GPP protocol, the resource group that corresponds to transmission mode 3 is orthogonal to the resource group that corresponds to transmission mode 4. The terminal device that uses mode 3 performs data transmission on a resource time-frequency in the resource group that supports mode 3, and the terminal device that uses mode 4 performs data transmission in a time-frequency resource in the resource group that supports mode 4.

[044] In the new Version 15 of the 3GPP protocol, to improve a resource utilization ratio, the terminal device that uses transmission mode 3 and the terminal device that uses transmission mode 4 can share a group of resources. The terminal device that uses transmission mode 3 is connected to the base station, and its transmission resource is allocated by the base station. However, when allocating a resource to the terminal device using transmission mode 3, the base station is not aware of the resource occupation situation in the resource group. If the resource allocated by the base station to the terminal device using transmission mode 3 has been occupied by the terminal device using transmission mode 4, interference may occur.

[045] Therefore, in the form of this request, the terminal device detects resources based on a specific transmission parameter, and determines the set of available resources based on a detection result. When reporting the set of resources available to the network device, the terminal device assists the network device to allocate a transmission resource to the terminal device, thereby reducing interference.

[046] Understandably, in the form of this request, the terminal device that supports Version 15 may include a terminal device that supports Version 15, or a terminal device that supports another version in addition to Version 15, for example, a terminal device that supports Version 16 in addition to Version 15.

[047] Figure 3 is a schematic flowchart of a method for configuring resources in D2D communications, according to one modality of this request; The method can be performed by a terminal device. The terminal device can be, for example, the terminal device 20 or the terminal device 30 shown in Figure 1. The method for configuring resources includes at least part of the following content.

[048] In step 310, the terminal device detects resources on at least one carrier based on a first set of parameters to obtain a set of resources available on at least one carrier.

[049] The resources in a set of resources available on each carrier can be used to transmit a target service. The first set of parameters includes at least one of: information about a resource to perform resource detection, a condition parameter to determine the set of available resources or a transmission parameter of the target service.

[050] In step 320, the terminal device reports information about the set of resources available on at least one carrier to a network device.

[051] Information about the set of available resources is used for the network device to determine a target resource to transmit the target service.

[052] Optionally, the method additionally includes step 330.

[053] In step 330, the terminal device receives resource programming information transmitted by the network device, where the resource programming information indicates the target resource to transmit the target service.

[054] Optionally, the target resource is a resource in the set of available resources that is reported by the terminal device and that is on at least one carrier, and the target resource can include one or more resources. All resources in the available resource set are available transmission resources, which are briefly referred to as available resources. For example, the available resources are resources that are obtained by the terminal device after the detection of resources, that meet the requirements and that can be used to transmit the target service.

[055] Specifically, before transmitting the target service, the terminal device can perform resource detection on one or more carriers based on parameters in the first set of parameters, and determine a set of resources available on one or more carriers based on a detection result. The resources in the available resource set can be used for the terminal device to transmit the target service. After determining the set of resources available on at least one carrier, the terminal device reports information about the set of resources available on at least one carrier to the network device, so that the network device is assisted in allocating a resource from transmission to the target service. After receiving the set of available resources that is reported by the terminal device and that is on at least one carrier, the network device can select, from the set of available resources, a transmission resource appropriate for the target service, and use programming information resource to indicate to the terminal device the target resource for transmitting the target service.

[056] Specifically, the terminal device can be, for example, a terminal device that uses a first transmission mode in Version 15. The first transmission mode can be, for example, equivalent to transmission mode 3 in Version 14 of the protocol 3GPP. When the terminal device uses the first transmission mode, a time-frequency resource used by the terminal device to carry out data transmission is a resource programmed by the network device.

[057] Therefore, the terminal device performs resource detection based on a specific transmission parameter and determines the set of available resources based on a detection result. When reporting the set of resources available to the network device, the terminal device assists the network device in allocating a transmission resource to the terminal device, thereby reducing interference.

[058] Optionally, information about the resource to perform resource detection includes at least one of: information about a group of resources to perform resource detection, information about a carrier to perform resource detection, information about a sub - band to perform resource detection, information about a number of PRBs to perform resource detection, information about a detection window to perform resource detection or information about a resource selection window to perform resource detection. Information about the resource selection window can include, for example, a value of Tl, a value of T2, information about the size of the selection window and the like.

[059] Optionally, the condition parameter to determine the set of available resources includes at least one among: a power threshold received from the shared physical secondary link channel reference signal (PSSCH-RSRP), the number of resources in the set of available resources or a percentage of available resources.

[060] The percentage of available resources is a ratio between the number of resources in the available resource set and the total number of resources in the detection window to perform resource detection.

[061] Optionally, the transmission parameter of the target service includes at least one of the following parameters: information about a priority of the target service, information about a volume of traffic from the target service, a transmission period of the target service, service latency target, a number of times of retransmission of the target service, a data packet size of the target service or a modulation and coding scheme of the target service.

[062] For example, based on an index of a carrier in the first set of parameters, information about a group of resources on the carrier, a size of a subband that needs resource detection, a number of PRBs that needs resource detection, information about the detection window and the like, the terminal device can perform resource detection in the detection window based on the size of the subband or the number of the PRBs. The terminal device can perform resource exclusion based on the PSSCH-RSRP threshold and the amount (such as B) of resources required in a set of resources available on each carrier to exclude resources that have a measured PSSCH-RSRP value greater than PSSCH-RSRP threshold and that are occupied and / or reserved by other terminal devices. In addition, the terminal device can select B resources with a lower received signal strength indicator (RSSI) value in the remaining resources, and use them as the set of available resources that can be used to transmit the target service.

[063] In another example, based on the target service's transmission parameter in the first set of parameters, such as a target service's data packet size or a target service's modulation and encoding scheme, or the like, the terminal device can determine the size of the subband that needs resource detection and / or the number of PRBs that need resource detection or the like. In this way, resource detection is performed in the corresponding carrier detection window based on the size of the subband or the number of PRBs, and an available transmission resource is selected in the resource selection window based on a result of detection.

[064] In another example, based on the data packet size of the target service, information about a target service period or information about a target service priority, or the like, the terminal device can determine the size of the sub- band that needs resource detection and / or the number of PRBs that need resource detection or the like. In this way, resource detection is performed in the corresponding carrier detection window based on the size of the subband or the number of PRBs, and an available transmission resource is selected in the resource selection window based on a result of detection.

[065] In another example, the terminal device can determine a PSSCH-RSRP threshold based on information about the priority of the target service, perform resource detection based on the PSSCH-RSRP threshold, and select a transmission resource available on resource selection window based on a detection result.

[066] In another example, the terminal device can determine a resource selection window size based on information about the target service's latency and then select an available transmission resource in the resource selection window based on a result of resource detection.

[067] In another example, the terminal device determines a size of the resource selection window based on information about the resource selection window and determines a resource available in the resource selection window based on a detection result. Information about the resource selection window can include, for example, at least one of: a starting point of the resource selection window, an end point of the resource selection window, or a window size.

[068] Optionally, before step 310, that is, before the terminal device performs resource detection on at least one carrier based on the first set of parameters, the method additionally includes: receiving, by a physical layer from the terminal device, the first set of parameters transmitted by an upper layer of the terminal device; or receive, by the terminal device, the first set of parameters transmitted by the network device.

[069] Optionally, before receiving, by the physical layer of the terminal device, the first set of parameters transmitted by the network device, the method additionally includes: reporting, by the terminal device, a second set of parameters to the network device.

[070] The second set of parameters includes at least one of: a busy channel ratio (CBR) for each of at least one carrier, a temporary storage status report (BSR), a transmission period for the target service, a target service priority or a target service latency requirement.

[071] Specifically, if the terminal device obtains the first set of parameters using the network device, before receiving the first set of parameters transmitted by the network device, the terminal device can transmit a second set of parameters to the device network, so that the network device determines the first set of parameters based on the second set of parameters and passes the first set of parameters to the terminal device to select the set of available resources. The second set of parameters can be, for example, CBR, BSR, the transmission period of the target service, the latency of the target service or information about the priority of the target service, or similar.

[072] In this “mode, the terminal device transmits the second set of parameters to the network device, so that the network device determines the first set of parameters to perform resource detection and resource selection. In this way, the terminal device obtains the set of available resources based on the first set of parameters and reports the set of available resources, and the network device can allocate a transmission resource to the terminal device based on the set of available resources, thereby reducing interference.

[073] Optionally, in step 320, the reporting, by the terminal device, of information about the set of resources available on at least one carrier to the network device includes: reporting, by the terminal device, information about the set of available resources on at least one carrier for the network device using uplink control (UCI) information, a Media Access Control (MAC) control element (MAC) or Radio Resource Control (RRC) signaling ).

[074] Optionally, in step 320, the reporting, by the terminal device, of information about the set of resources available on at least one carrier to the network device includes: reporting, by the terminal device, assistance information (UVUEAssistanceInformation) of the device terminal while reporting information about the set of resources available on at least one carrier to the network device.

[075] In other words, while reporting information about the set of available resources, the terminal device reports assistance information simultaneously. Service information can include, for example, information about a volume of traffic from the target service, the priority of the target service or a period of the target service. For details on service information for the terminal device, refer to the description in UEAssistanceInformation in existing protocols.

[076] Optionally, reporting, by the terminal device, of information about the set of resources available on at least one carrier to the network device includes: reporting, by the terminal device, a bitmap of resources from at least one carrier to the network device, where the resource bitmap of each carrier includes a plurality of bits, the plurality of bits are matched one by one with a plurality of resources in the detection window where the terminal device performs the detection of resources on each carrier, or the plurality of bits are matched one by one with a plurality of resources in a part of the detection window where the terminal device performs the detection of resources on each carrier, or the plurality of bits is in correspondence one to one with a plurality of resources in a terminal device resource selection window on each carrier, and a value of each of the plurality of ind bits is whether a resource that corresponds to each bit belongs to a set of resources available on each carrier.

[077] The resource selection window can mean all resources in a time interval [n + Tl, n + T2], where Tl 2 0, T2 2 Tl, and n is a point in time to perform the detection of resources.

[078] One possible implementation is that all resources detected on a carrier are represented by a resource bitmap. The resource bitmap includes a plurality of bits, and each bit corresponds to a resource. The plurality of bits are in one-to-one correspondence with the plurality of resources that are detected on the carrier. The value of each bit is used to indicate whether the resource that corresponds to the bit is available, that is, if the resource belongs to the set of resources available on the carrier. For example, in the resource detection process performed by the terminal device, if the resource is available, the value of the bit that corresponds to the resource is set to 1; or, if the resource is not available, the value of the bit that corresponds to the resource is set to 0. The number of all available resources obtained is finally equal to the number of resources in the set of available resources, where the number of resources is defined in the first parameter. The terminal device finally reports the resource bitmap that corresponds to the carrier to the network device. In this way, the network device is aware of the resources on the carrier that are available to transmit the target service, and selects the target resource from the resources available to transmit the target service.

[079] Optionally, resources in part of the detection window on a carrier are represented by a resource bitmap. For example, the detection window is [N-1000, n-1]), where n is a point in time to perform resource detection. However, the resource bitmap is matched one by one with the resources in the detection window part, where the detection window part is [n- 100, n-1]. For the rest, consult the relevant description in the previous modality, and details are not described again in this document.

[080] Optionally, resources in a carrier selection window are represented by a resource bitmap. For example, the terminal device performs detection in the detection window [n-1000, n-1], and determines the resources available in the selection window [n, n + 100]. An available resource is represented by 1 and an unavailable resource is represented by 0. The resource bitmap is matched one to one with a plurality of resources in the selection window. The terminal device finally reports the resource bitmap that corresponds to the carrier to the network device. In this way, the network device is aware of the resources on the carrier that are available to transmit the target service, and selects the target resource from the resources available to transmit the target service.

[081] In another possible implementation, the resource bitmap includes a first resource bitmap, the first resource bitmap includes a plurality of bits, the plurality of bits are matched one to one with a plurality of units of time in a first time interval, and a value of each of the plurality of bits indicates whether there is a resource available in a unit of time that corresponds to each bit. The time unit can include, for example, a subframe or a partition.

[082] The first time interval can be, for example, a detection window for the terminal device to carry out resource detection, or a resource selection window to carry out resource selection.

[083] In addition, optionally, the resource bitmap includes a second resource bitmap, the second resource bitmap includes a plurality of bits, the plurality of bits are matched one to one with a plurality of frequency domain units in a first frequency domain range, and a value for each of the plurality of bits indicates whether there is a resource available in a frequency domain unit that corresponds to each bit. Frequency domain units can include, for example, an RBG, a subband and an RB.

[084] The first frequency domain range can be, for example, a frequency domain range of a system bandwidth for the terminal device to perform resource detection, or a frequency domain range of a group of resources to perform resource detection.

[085] For example, the resource bitmap includes a first resource bitmap and a second resource bitmap. A plurality of bits in the first resource bitmap are matched one by one with a plurality of subframes. A plurality of bits in the second resource bitmap are matched one to one with a plurality of subbands. If a resource in a time unit indicated by a bit in the first resource bitmap is an available resource, and a resource in a frequency domain unit indicated by a bit in the second resource bitmap is an available resource, then, a resource formed from the time unit and the frequency domain unit belongs to the set of available resources.

[086] In another possible implementation, information about the set of available resources additionally includes a time domain index of at least one unit of time in a second time interval, there is a resource available in a unit of time that corresponds to each time domain index, and the second time interval can be a detection window for the terminal device to perform resource detection or a resource selection window to perform resource selection. The time unit can include, for example, a subframe or a partition. In this case, optionally, the resource bitmap can include a second resource bitmap. A bit in the second resource bitmap can indicate a specific location in the frequency domain of the available resource that exists in a time unit that corresponds to a time domain index ported in the information about the set of available resources.

[087] For example, if the second time interval is a resource selection window [n, n + 100] milliseconds and the set of available resources includes a k index of a subframe in the resource selection window, then this indicates that there is a resource available in the subframe that corresponds to the k index. In addition, if the set of available resources additionally includes a bitmap and each bit in the bitmap corresponds to a subband, then the set of available resources indicates that, in the frequency domain resources in subframe k, a resource in the subband that corresponds to a bit, the value 1 is an available resource.

[088] In another possible implementation, information on the set of available resources additionally includes a frequency domain index of at least one frequency domain unit in a second frequency domain range. An available resource exists in each frequency domain unit, and the second frequency domain range can be a system bandwidth frequency domain range that is used for the terminal device to perform source detection, or a frequency domain range of a resource group to perform resource detection. Frequency domain units can include, for example, an RBG, a subband and an RB. In this case, optionally, the resource bitmap can include a first resource bitmap. A bit in the first resource bitmap can indicate a specific location in the time domain of the available resource that exists in a frequency domain unit that corresponds to a frequency domain index ported in the information about the set of available resources.

[089] Understandably, the terminal device can report the set of available resources in the form of a resource bitmap; or the terminal device can directly report the location in the time domain and / or the location in the frequency domain of each available resource in the set of available resources; or, the terminal device may also indicate the set of resources available to the network device by other means. This is not limited in the form of this request.

[090] Optionally, the reporting by the terminal device of information about the set of resources available on at least one carrier to the network device includes: reporting, by the terminal device, an index of at least one candidate target resource in the set of resources available on at least one carrier for the network device.

[091] An index of each candidate target resource in a set of resources available on each carrier is used to indicate a location of each candidate target resource in the detection window of each carrier, W or indicate a location of each candidate target resource in the window selection of resources for each carrier, or indicate a location of each candidate target resource in a set of resources available on each carrier, or indicate a time-frequency resource location of each candidate target resource on each carrier.

[092] In an implementation other than the previous implementation in which the resource bitmap is reported, the terminal device cannot report all resources available in the resource set available to the network device, but select one or more resources in one set of resources available on each carrier and use the resources as candidate target resources, and report only the candidate target resources to the network device, thereby reducing bit overhead. The number of reported candidate target resources can be configured by the network device or specified in the protocol. In candidate target resources, the network device can select one or more target resources for the terminal device to transmit the target service.

[093] For example, the terminal device can, in a set of resources available on each carrier,

select several resources with the lowest signal strength indicator value received from secondary link S-RSSI or PSSCH-RSRP as candidate target resources, and report indexes of candidate target resources to the network device. The number of candidate target resource indexes reported is configured or preconfigured by the network device.

[094] Each candidate target resource index on a carrier can be determined based on the resources in the carrier detection feature detection window. For example, the index can indicate the location of each candidate target resource among all resources in the detection window.

[095] For example, assuming that the index is used to indicate the location of each candidate target resource in the detection window and that the total number of resources in the detection window where the terminal device performs resource detection is 12, the indexes of the 12 resources are 1 to 12 successively based on their location in their time domain, and the number of candidate target resources is 4. If four resources that have the lowest value of S-RSSI or PSSCH-RSRP and that are selected by the terminal device after detection in the 12 resources are indexed resources 1, 2, 4 and 7, The terminal device will report indexes 1, 2, 4 and 7 to the network device, so that the network device selects a resource target in the four resources and indicate the target resource for the terminal device.

[096] Alternatively, each candidate target resource index on the carrier can be determined based on the resources in the carrier selection window. For example, the index can indicate the location of each candidate target resource among all resources in the resource selection window.

[097] For example, assuming that the index is used to indicate the location of each candidate target resource in the selection window and that the total number of resources in the selection window where the terminal device performs the resource selection is 12, indexes of the 12 resources are 1 to 12 successively based on their location in their time domain, and the number of candidate target resources is 4. If, after the values of S-RSSI or PSSCH-RSRP in the 12 resources are detected and predicted , four resources that have the lowest value of S-RSSI or PSSCH-RSRP and that are selected by the terminal device are indexed resources 1, 2, 4 and 7, the terminal device will report indexes 1, 2, 4 and 7 for the network device, so that the network device selects a target resource from the four resources and indicates the target resource for the terminal device.

[098] Alternatively, each candidate target resource index on the carrier can be determined based on the resources in the set of available resources obtained after detection is performed on the carrier. For example, the index can indicate the location of each candidate target resource among all resources in the available resource set.

[099] Alternatively, each candidate target resource index on the carrier can be determined based on the location of each candidate target resource on the carrier, for example, determined based on a location in the time domain and a location in the frequency domain of the resource candidate target. In this case, the target resource index includes a location index in the time domain and a location in the frequency domain index of the candidate target resource on the carrier.

[100] If the first set of parameters is not transmitted by the network device to the terminal device, but is transmitted by an upper layer of the terminal device to the physical layer of the terminal device, the method additionally includes: reporting, by the device terminal, a third set of parameters for the network device.

[101] Optionally, the third set of parameters includes at least one of them: information about a resource that is used to perform resource detection, a condition parameter to determine the set of available resources and a transmission parameter of the target service.

[102] Optionally, information about the resource to perform resource detection includes at least one of: information about a group of resources to perform resource detection, information about a carrier to perform resource detection, information about a sub - band to perform resource detection, information about a number of physical resource blocks (PRBs) to perform resource detection and information about a third time interval.

[103] Information about the third time slot can include, for example, at least one of:

[104] information about a detection window to perform resource detection, information about a resource selection window to perform resource selection or a time interval relative to a specific point in time.

[105] The specific point in time can be, for example, any of: a point in time of detection of resources performed by the terminal device, a point in time of reporting the set of resources available by the terminal device, a first subframe ( that is, a subframe 0) in a radio frame period, a point in time when the terminal device receives an instruction from the network device, a point in time when a terminal device service occurs, or a point in time determined based on subframe offset information and information about the service period of the terminal device. Subframe displacement and service period information can be carried in the service information (UEAssistanceInformation) reported by the terminal device to the network device.

[106] The time interval can be, for example, [N + Tl, n + T2], where n is the specific point in time, Tl> O, eT2> Tl.

[107] Optionally, the condition parameter to determine the set of available resources includes at least one of: a power threshold received from the shared physical secondary link channel reference signal (PSSCH-RSRP), a number of resources and a percentage of available resources in the available resource set, where the percentage of available resources is a ratio between a number of resources in the available resource set and a total number of resources in the detection window to perform resource detection; and / or

[108] Optionally, the target service's transmission parameter includes at least one of the following parameters: information about a target service's priority, information about a target service's traffic volume, a target service's transmission period, service latency target, a number of times of retransmission of the target service, a data packet size of the target service or a modulation and coding scheme of the target service.

[109] Understandably, the parameters in the third parameter set may be the same as the parameters in the first parameter set in part or in whole.

[110] Optionally, in step 330, if at least one carrier includes a target carrier, and the target resource is a resource in the set of resources available on the target carrier, then the resource scheduling information can include an index of the resource target. The target resource index is used to indicate the location of the target resource in the detection window of the target carrier or to indicate the location of the target resource in the set of resources available on the target carrier or to indicate a time-frequency resource location of the target resource in the target carrier.

[111] Specifically, the target resource on the target carrier is a resource selected by the network device for the terminal device to transmit the target service. The network device can transmit the resource scheduling information to the terminal device. The resource schedule information includes an index of the target resource. The target resource index is used to indicate the location of the target resource in the set of available resources or to indicate the location of the target resource in the detection window of the target carrier or to indicate the location of the target resource's time-frequency resource on the target carrier.

[112] When at least one carrier includes a carrier, the carrier is the target carrier.

[113] When the at least one carrier includes a plurality of carriers, the target carrier may, for example, be a carrier with the lowest CBR value in the plurality of carriers. The terminal device can report a second set of parameters to the network device. The second set of parameters includes CBRs of the plurality of carriers, and the network device can determine the target carrier based on the CBRs received on the plurality of carriers.

[114] For example, it is assumed that the set of available resources that is reported by the terminal device to the network device and that is on the target carrier includes eight available resources, and the eight available resources are represented by a resource bitmap. . It is assumed that the total number of resources in the detection window where the terminal device performs resource detection is 12, and the resource bitmap used to represent the set of available resources is 1100 1011 1011, where 1 indicates that the resource belongs to the set of available resources and O indicates that the resource does not belong to the set of available resources. If the network device selects a second available resource based on the resource bitmap and allocates the resource to the terminal device, the network device can transmit resource programming information that carries index 2 to the terminal device. Resource scheduling information instructs the terminal device to transmit the target service using the second resource in the set of available resources.

[115] In another example, it is assumed that the set of available resources that is reported by the terminal device to the network device and that is on the target carrier includes

12 available resources, and the terminal device reports the set of resources available to the network device using RRC signaling. In RRC signaling, the set of available resources includes time domain information and frequency domain information for each available resource. Based on the set of available resources reported by the terminal device, the network device selects the fourth available resource from the set of available resources as a transmission device from the terminal device and allocates the resource to the terminal device. Therefore, the network device can transmit resource programming information that carries index 4 to the terminal device. Resource scheduling information instructs the terminal device to transmit the target service using the fourth resource in the set of available resources.

[116] Understandably, the network device can use the antecedent resource index to indicate, for the terminal device, the target resource that is in the set of available resources and that is used to transmit the target service.

[117] Optionally, available resource programming information includes KxN bits, K is the number of target resources, K is an integer greater than or equal to 1, N is the number of bits occupied by the target resource index, N = log2 (M), and Mé the number of resources in the target carrier detection window or the number of resources in the set of resources available on the target carrier or the number of candidate target resource indices reported by the end device to the network device.

[118] For example, if the network device selects, from the set of resources available on the target carrier, two transmission resources for the target service to transmit the target service twice, for example, to transmit the target service once and retransmit the target service once, then the resource scheduling information transmitted by the network device includes indexes of the two resources. The index of each resource is represented by N bits. Therefore, the two resources must be represented by 2N bits, where N = log2 (M), and Mé the number of resources in the set of resources available on the target carrier, or the number of resources in the detection window of the target carrier or the number of indexes of candidate target resources reported by the terminal device to the network device. For example, if the number of resources in the target carrier detection window is 4,000 (1,000 subframes, with each subframe having four sub-bands, totaling 4,000 resources), then M = 4,000; or, if the number of resources in the set of resources available on the target carrier is 1,000, then M = 1,000; or, if the terminal device reports four candidate target resource indexes for the network device, then M = 4.

[119] Figure 4 is a schematic flowchart of a method for configuring resources in D2D communications, according to one modality of this request; The method shown in Figure 4 can be performed by a network device, and the network device can be, for example, the network device 10 shown in Figure 1. As shown in Figure 4, the The method for configuring resources in D2D communications includes the following steps.

[120] In step 410, a network device receives information reported by a terminal device about a set of resources available on at least one carrier.

[121] The resources in a set of resources available on each carrier can be used to transmit a target service.

[122] In step 420, the network device determines, in the set of resources available on at least one carrier, a target resource to transmit the target service. Optionally, the target resource is one or more resources in the set of resources available on at least one carrier.

[123] Optionally, the method can additionally include step 430.

[124] In step 430, the network device transmits resource scheduling information to the terminal device, where the resource scheduling information is used to indicate the target resource.

[125] Therefore, the network device can allocate the transmission resource to the terminal device in the set of available resources based on the set of available resources reported by the terminal device. The resource in the set of available resources is obtained by the terminal device based on the detection result and, therefore, the selection, by the network device, of the resource for the terminal device in the set of available resources can significantly reduce the interference caused by and for other terminal devices.

[126] Optionally, before receiving, by a network device, the information reported by a terminal device about a set of resources available on at least one carrier, the method additionally includes: transmitting, by the network device, a first set of parameters for the terminal device, where the first set of parameters is used for the terminal device to perform resource detection on at least one carrier to obtain the set of resources available on at least one carrier, and the first set of parameters includes at least one less: information about a resource to perform resource detection, a condition parameter to determine the set of available resources and a transmission parameter of the target service.

[127] Optionally, information about the resource to perform resource detection includes at least one of: information about a group of resources to perform resource detection, information about a carrier to perform resource detection, information about a sub - band to perform resource detection, information about a number of physical resource blocks (PRBs) to perform resource detection or information about a detection window to perform resource detection.

[128] Optionally, the condition parameter to determine the set of available resources includes at least one of: a power threshold received from the shared physical secondary link channel reference signal (PSSCH-RSRP), a number of resources and a percentage of available resources in the available resource set, where the percentage of available resources is a ratio between a number of resources in the available resource set and a total number of resources in the detection window to perform resource detection.

[129] Optionally, the transmission parameter of the target service includes at least one of the following parameters: information about a priority of the target service, information about a volume of traffic from the target service, a transmission period of the target service, service latency target, a number of times of retransmission of the target service, a data packet size of the target service or a modulation and coding scheme of the target service.

[130] Optionally, before the transmission, by the network device, of a first set of parameters to the terminal device, the method additionally includes: receiving, by the network device, a second set of parameters reported by the terminal device, in which the The second set of parameters includes at least one of: a busy channel ratio (CBR) for each of the plurality of carriers, a temporary storage status report (BSR), a target service priority or a target service latency requirement ; and determining, by the network device, the first set of parameters based on the second set of parameters.

[131] Optionally, the receipt, by a network device, of the information reported by a terminal device on a set of resources available on at least one carrier includes: receiving, by the network device, the information reported by the terminal device on the set of resources available on at least one carrier using uplink control (UCI) information, a media access control (MAC) control element (MAC) or radio resource control signaling (RRC).

[132] Optionally, the receipt, by a network device, of information reported by a terminal device about a set of resources available on at least one carrier includes: receiving, by the network device, assistance information (UEAssistanceInformation) while receiving the information reported by the terminal device about the set of resources available on at least one carrier, where assistance information is reported by the terminal device.

[133] Optionally, the receipt, by a network device, of information reported by a terminal device about a set of resources available on at least one carrier includes: receiving, by the network device, a bitmap of resources that is reported by the terminal device and that is of at least one carrier. The resource bitmap for each carrier includes a plurality of bits, the plurality of bits are matched one by one with a plurality of resources in the detection window where the terminal device performs the detection of resources on each carrier, and one the value of each of the plurality of bits indicates whether a resource that corresponds to each bit belongs to a set of resources available on each carrier.

[134] Optionally, the receipt, by a network device, of information reported by a terminal device about a set of resources available on at least one carrier includes: receiving, by the network device, an index that is reported by the terminal device and that is at least one candidate target resource in the set of resources available on at least one carrier. An index of each candidate target resource in a set of resources available on each carrier is used to indicate the location of each candidate target resource in each carrier's detection window, or to indicate the location of each candidate target resource in a set of available resources on each carrier, or indicate a time-frequency resource location for each candidate target resource on each carrier.

[135] Optionally, at least one carrier includes a target carrier, and the target resource is a resource in a set of resources available on the target carrier.

[136] Resource schedule information includes an index of the target resource, the index of the target resource is used to indicate the location of the target resource among a plurality of resources in the target carrier's detection window or to indicate the location of the target resource in the set of resources available on the target carrier or indicate the location of the target resource's time-frequency resource on the target carrier.

[137] Optionally, resource programming information includes KxN bits, where K is the number of target resources, K is an integer greater than or equal to l, N is the number of bits occupied by the index of the target resource, N = log2 (M), and M is the number of resources in the target carrier detection window or the number of resources in the set of resources available on the target carrier or the number of candidate target resource indexes “reported by the terminal device to the network device .

[138] Understandably, for a detailed resource configuration process performed by the network device, refer to the relevant description of the terminal device in Figure 3. For brevity, details are not described again in this document.

[139] Furthermore, understandably, in various modalities of this application, the sequence number of a step described above does not mean the order of implementation of the step. The order of implementation of each stage must depend on its functionality and intrinsic logic and must not constitute any limitation to the process of implementing the modality of this request.

[140] It should be noted that, insofar as there is no conflict, the modalities of this application and / or the technical characteristics of the modalities described in this document can be combined with each other, as necessary, and the technical solutions obtained after the combination also must be within the scope of protection of this order.

[141] The foregoing described in detail the method for configuring resources in D2D communications according to the modality of this request. In the following an apparatus will be described according to one embodiment of this application with reference to Figure 5 to Figure 8. The technical characteristics described in the method embodiment are applicable to the following device embodiment.

[142] Figure 5 is a schematic block diagram of a terminal device 500, according to an embodiment of this application. As shown in Figure 5, terminal device 500 includes a detection unit 510 and a transceiver unit 520.

[143] Resource detection unit 510 is configured to perform resource detection on at least one carrier based on a first set of parameters to obtain a set of resources available on at least one carrier, where a resource in a set of resources available on each carrier can be used to transmit a target service, and the first set of parameters includes at least one of: information about a resource to perform resource detection, a condition parameter to determine the set of available resources, or a transmission parameter of the target service.

[144] The transceiver unit 520 is configured to report, to a network device, information about the set of available resources that is obtained by the detection unit 510 and that is on at least one carrier.

[145] Therefore, the terminal device performs resource detection based on a specific transmission parameter and determines the set of available resources based on a detection result. When reporting the set of resources available to the network device, the terminal device assists the network device in allocating a transmission resource to the terminal device, thereby reducing interference.

[146] Optionally, information about the resource to perform resource detection includes at least one of: information about a group of resources to perform resource detection, information about a carrier to perform resource detection, information about a sub - band to perform resource detection, information about a number of physical resource blocks (PRBs) to perform resource detection or information about a detection window to perform resource detection; and / or

[147] Optionally, the condition parameter to determine the set of available resources includes at least one of: a power threshold received from the shared physical secondary link channel reference signal (PSSCH-RSRP), a number of resources and a percentage of available resources in the available resource set, where the percentage of available resources is a ratio between a number of resources in the available resource set and a total number of resources in the detection window to perform resource detection; and / or

[148] The target service transmission parameter includes at least one of the following parameters: information about a target service priority, information about a volume of traffic from the target service, a transmission period of the target service, latency of the target service, a number of times of retransmission of the target service, a packet size of the target service or a modulation and encoding scheme for the target service.

[149] Optionally, the transceiver unit 520 is specifically configured to: receive, in a physical layer, the first set of parameters transmitted from an upper layer; or receive the first set of parameters transmitted by the network device.

[150] Optionally, the transceiver unit 520 is additionally configured to: report a second set of parameters to the network device, where the second set of parameters includes at least one of: a busy channel ratio (CBR) for each a plurality of carriers, a temporary storage status report (BSR), the priority of the target service or a latency requirement of the target service.

[151] Optionally, the transceiver unit 520 is specifically configured to: report information about the set of resources available on at least one carrier to the network device using uplink control information (UCI), an element of control (CE) media access control (MAC) or radio resource control (RRC) signaling.

[152] Optionally, the transceiver unit 520 is specifically configured to: report assistance information from the terminal device while reporting information about the set of resources available on at least one carrier to the network device.

[153] Optionally, the transceiver unit 520 is specifically configured to: report a resource bitmap from at least one carrier to the network device, where each carrier's resource bitmap includes a plurality of bits, the plurality of bits is matched one to one with a plurality of resources in the detection window where the terminal device performs the detection of resources on each carrier or the plurality of bits is matched one to one with a plurality of resources in a window of selection of resources of the terminal device in each carrier, and a value of each of the plurality of bits indicates whether a resource that corresponds to each bit belongs to a set of resources available in each carrier.

[154] Optionally, the transceiver unit 520 is specifically configured to: report an index of at least one candidate target resource on the set of resources available on at least one carrier to the network device, where an index of each candidate target resource on a set of resources available on each carrier is used to indicate a location of each candidate target resource in each carrier's detection window, or indicate a location of each candidate target resource in each carrier's resource selection window, or indicate a location of each candidate target resource in a set of resources available on each carrier, or indicate a time-frequency resource location of each candidate target resource on each carrier.

[155] Optionally, the transceiver unit 520 is additionally configured to: receive resource programming information transmitted by the network device, where the resource programming information indicates a target resource to transmit the target service.

[156] Optionally, at least one carrier includes a target carrier, and the target resource is a resource in the set of resources available on the target carrier. The resource schedule information includes an index of the target resource. The target resource index is used to indicate the location of the target resource in the detection window of the target carrier or to indicate the location of the target resource in the set of resources available on the target carrier or to indicate a time-frequency resource location of the target resource in the target carrier.

[157] Optionally, resource programming information includes KxN bits, where K is the number of target resources, K is an integer greater than or equal to l, N is the number of bits occupied by the index of the target resource, N = log2 (M), and M is the number of resources in the target carrier detection window or the number of resources in the set of resources available on the target carrier or the number of indexes of candidate target resources reported by the terminal device to the The network device .

[158] Understandably, the terminal device 500 can perform the corresponding operations of the method 300 performed by the terminal device in the previous method mode. For brevity, no details are described again in this document.

[159] Figure 6 is a schematic block diagram of a network device 600 according to an embodiment of the present application. As shown in Figure 6, the network device 600 includes a transceiver unit 610 and a determination unit 620.

[160] Transceiver unit 610 is configured to receive information reported by a terminal device about a set of resources available on at least one carrier, where a resource in a set of resources available on each carrier can be used to transmit a target service .

[161] The determination unit 620 is configured to determine, in the set of available resources that is received by the transceiver unit 610 and that is on at least one carrier, a target resource to transmit the target service.

[162] Therefore, the network device can allocate the transmission resource to the terminal device in the set of available resources based on the set of available resources reported by the terminal device. The resource in the set of available resources is obtained by the terminal device based on the detection result and, therefore, the selection, by the network device, of the resource for the terminal device in the set of available resources can significantly reduce the interference caused by and for other terminal devices.

[163] Optionally, the transceiver unit 610 is additionally configured to: transmit a first set of parameters to the terminal device, where the first set of parameters is used for the terminal device to detect resources on at least one carrier to obtain the set of available resources on at least one carrier, and the first set of parameters includes at least one among: information about a resource to perform resource detection, a condition parameter to determine the set of available resources and a transmission parameter of target service.

[164] Optionally, information about the resource to perform resource detection includes at least one of: information about a group of resources to perform resource detection, information about a carrier to perform resource detection, information about a sub - band to perform resource detection, information about a number of physical resource blocks (PRBs) to perform resource detection or information about a detection window to perform resource detection; and / or

[165] Optionally, the condition parameter to determine the set of available resources includes at least one of: a power threshold received from the shared physical secondary link channel reference signal (PSSCH-RSRP), a number of resources and a percentage of available resources in the available resource set, where the percentage of available resources is a ratio between a number of resources in the available resource set and a total number of resources in the detection window to perform resource detection; and / or

[166] The target service transmission parameter includes at least one of the following parameters: information about a target service priority, information about a target service traffic volume, a target service transmission period, target service latency, a number of times of retransmission of the target service, a packet size of the target service or a modulation and encoding scheme for the target service.

[167] Optionally, the transceiver unit 610 is additionally configured to: transmit the first set of parameters to the terminal device, where the first set of parameters is used for the terminal device to detect resources on at least one carrier to obtain a set of features available on at least one carrier.

[168] Optionally, the transceiver unit 610 is additionally configured to: receive a second set of parameters reported by the terminal device, where the second set of parameters includes at least one among: a busy channel ratio (CBR) from each of the plurality of carriers, a temporary storage status report (BSR), a target service priority or a target service latency requirement; and the determination unit 620 is further configured to determine the first set of parameters based on the second set of parameters.

[169] Optionally, the 610 transceiver unit is specifically configured to: receive the information reported by the terminal device about the set of resources available on at least one carrier using the uplink control information (UCI), a control element (CE) media access control (MAC) or radio resource control (RRC) signaling.

[170] Optionally, the transceiver unit 610 is specifically configured to: receive assistance information while receiving information reported by the terminal device about the set of resources available on at least one carrier, where assistance information is reported by the terminal device.

[171] Optionally, the transceiver unit 610 is specifically configured to: receive a resource bitmap that is reported by the terminal device and that is of at least one carrier, where each carrier's resource bitmap includes a plurality of bits, the plurality of bits are matched one to one with a plurality of resources in the detection window where the terminal device performs the detection of resources on each carrier, or the plurality of bits are matched one to one with a plurality of resources in a terminal device resource selection window on each carrier, and a value for each of the plurality of bits indicates whether a resource that corresponds to each bit belongs to a set of resources available on each carrier.

[172] Optionally, the 610 transceiver unit is specifically configured to: receive an index that is reported by the terminal device and that is at least one candidate target resource in the set of resources available on at least one carrier. An index of each candidate target resource in a set of resources available on each carrier is used to indicate a location of each candidate target resource in the detection window of each carrier, or to indicate a location of each candidate target resource in the resource selection window of each carrier, or indicate a location of each candidate target resource in a set of resources available on each carrier, or indicate a time-frequency resource location of each candidate target resource on each carrier.

[173] Optionally, the transceiver unit 610 is additionally configured to: transmit resource programming information to the terminal device, where the resource programming information is used to indicate the target resource determined by the determination unit 620.

[174] Optionally, at least one carrier includes a target carrier, and the target resource is a resource in the set of resources available on the target carrier. The resource schedule information includes an index of the target resource. The target resource index is used to indicate the location of the target resource among a plurality of resources in the target carrier's detection window or to indicate the location of the target resource in the set of resources available on the target carrier or to indicate a time- frequency of the target resource on the target carrier.

[175] Optionally, resource programming information includes KxN bits, where K is the number of target resources, K is an integer greater than or equal to l, N is the number of bits occupied by the target resource index, N = log2 (M), and M is the number of resources in the target carrier detection window or the number of resources in the set of resources available on the target carrier or the number of candidate target resource indices reported by the terminal device to the network device.

[176] Understandably, the network device 600 can perform the corresponding operations of method 400 performed by the network device in the previous method mode. For brevity, no details are described again in this document.

[177] Figure 7 is a schematic structural diagram of a communications device 700 according to an embodiment of the present application. As shown in Figure 7, the communications device includes a processor 710, a transceiver 720 and a memory 730. Processor 710, transceiver 720 and memory 730 communicate with each other via a communication path. Memory 730 is configured to store an instruction, and processor 710 is configured to execute the instruction stored in memory 730, to control transceiver 720 to receive a signal or send a signal.

[178] Optionally, the Processor 710 can invoke program code stored in memory 730, to perform corresponding operations on method 300 performed by the terminal device in method modalities. For brevity, details are not described again in this document.

[179] Optionally, processor 710 can invoke program code stored in memory 730, to perform corresponding operations on method 400 performed by the network device in method modalities. For brevity, details are not described again in this document.

[180] It should be understood that the processor in this embodiment of the present application can be an integrated circuit chip and have a signal processing capability. During the implementation, the steps of the aforementioned method modality can be implemented using a hardware integrated logic circuit in the processor or implemented using an instruction in a software form. The aforementioned processor can be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an array of field programmable ports (FPGA), or another programmable logic device, distinct port or transistor logic device, or separate hardware component. The processor can implement or carry out the methods, steps and logic block diagrams revealed in the modalities of this request. The general purpose processor can be a microprocessor or the processor can be any conventional processor and the like. Steps of the methods disclosed with reference to the modalities of this order can be directly performed and completed using a hardware decoding processor, or can be performed and completed using a combination of hardware and software modules in the decoding processor. The software module can be located on mature storage media in the field, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory or a recorder. The storage media is located in memory and the processor reads information in memory and completes the steps in the methods mentioned above in combination with processor hardware.

[181] It can be understood that the memory in the modalities of this application can be a volatile memory or a non-volatile memory or it can include both a volatile memory and a non-volatile memory. Non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (erasable PROM, EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory. Volatile memory can be a random access memory (RAM) and is used as an external cache. Through an exemplary but non-limiting description, many forms of RAM can be used, for example, a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM) , a dual data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchlink dynamic random access memory (SLDRAM) and a direct rambus random access memory ( DR RAM). It should be noted that the memory for the system and method described in this document is intended to include, however, without limitation, these memories and any other suitable types of memories.

[182] Figure 8 is a structural schematic diagram of a chip, according to one embodiment of this application; e Chip 800 in Figure 8 includes an input interface 801, an output interface 802, at least one processor 803 and a memory 804. Input interface 801, output interface 802, processor 803 and memory 804 are connected via an internal connection path. The 803 processor is configured to execute the code stored in memory 804.

[183] Optionally, when the code is executed, processor 803 can implement method 300 performed by the terminal device in method modalities. For brevity, details are not described again in this document.

[184] Optionally, when the code is executed, processor 803 can implement method 400 performed by the network device in the method modalities. For brevity, details are not described again in this document.

[185] It should be noted that the chip mentioned in the modalities of this application can also be referred to as a system-level chip, a system chip, a chip system or a chip system, or the like.

[186] Figure 9 is a schematic block diagram of a 900 communications system according to one embodiment of this request. As shown in Figure 9, the communications system 900 includes a terminal device 910 and a network device 920.

[187] The 910 terminal device is configured to: perform resource detection on at least one carrier based on a first set of parameters to obtain a set of resources available on at least one carrier, where the resource in a set of resources available on each carrier is configured to transmit a target service, and the first set of parameters includes at least one of them: information about a resource to perform resource detection, a condition parameter to determine the set of available resources, or a transmission of the target service; and reporting information about the set of features available on at least one carrier to a network device.

[188] The 920 network device is configured to: receive information from the set of available resources that is reported by the terminal device and on at least one carrier, where the resource in a set of resources available on each carrier can be used to transmit the target service; and determine the target resource of the target service in the set of resources available on at least one carrier.

[189] The terminal device 910 can be configured to implement the corresponding function implemented by the terminal device in method 300. The composition of the terminal device 910 can be as shown in terminal device 500 in Figure 5. For brevity, details are not described again in the this document.

[190] The network device 920 can be configured to implement the corresponding function implemented by the network device in method 400. The composition of the network device 920 can be as shown in the network device 600 in Figure 6. For brevity, details are not are described again in this document.

[191] It should be understood that in this embodiment of the present disclosure, "B which corresponds to A" indicates that B is associated with A, and B can be determined based on. However, it must be further understood that determining B according to A does not mean that B is determined according to A only; that is, B can also be determined according to A and / or other information.

[192] A person of ordinary skill in the art may be aware that, in combination with the examples described in the modalities revealed in this specification, algorithm units and steps can be implemented by electronic hardware or a combination of computer software and electronic hardware . Functions are performed by hardware or software according to applications and design constraints specific to technical solutions. A person skilled in the art may use different methods to implement the functions described for each particular application, but implementation should not be considered to be beyond the scope of this request.

[193] It can be clearly understood by a person versed in the technique that, for the purposes of a convenient and brief description, for a detailed work process of the aforementioned system, apparatus and unit, reference to a corresponding process in the above mentioned method modalities, and details are not described again in this document.

[194] In the various modalities provided in this application, it must be understood that the revealed system, apparatus and method can be implemented in other ways. For example, the described apparatus modalities are only schematic. For example, the unit division is just a logical function division and can be another division in an actual deployment. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or realized. In addition, the mutual couplings displayed or discussed or direct couplings or communication connections can be implemented via some interfaces. Indirect couplings or communication connections between devices or units can be implemented in electrical, mechanical or other forms.

[195] The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position or may be distributed across a plurality of network units. Some or all of the units can be selected according to real needs to achieve the objectives of the modalities solutions.

[196] In addition, the functional units in the modalities of this application can be integrated into a monitoring unit, or each of the units can exist physically alone or two or more units are integrated into one unit.

[197] When functions are deployed in the form of a functional software module and sold or used as a stand-alone product, the functions can be stored on a computer-readable storage medium. Based on such an understanding, the technical solutions of the present application essentially, or the part that contributes to the prior art, or part of the technical solutions, can be implemented in the form of a software product. The computer software product is stored on a storage medium and includes several instructions for instructing a computer device (which can be a personal computer, a server, a network device and the like) to perform all or some steps of the methods described in the modalities of this application. The preceding storage media includes: any media that can store program codes, such as a USB flash disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc.

[198] The preceding descriptions are merely specific implementation forms of this application, but are not intended to limit the scope of protection of this application. Any variation or substitution promptly identified by a person skilled in the art, within the technical scope disclosed in this order, must be within the scope of protection of this order. Therefore, the scope of protection of this claim must be subject to the scope of protection of the claims.

Claims (14)

1. METHOD FOR CONFIGURING RESOURCES IN COMMUNICATIONS DEVICE TO DEVICE (D2D), characterized by understanding: performing, by a terminal device, detection of resources in at least one carrier based on a first set of parameters to obtain a set of available resources on at least one carrier, where a resource in a set of resources available on each carrier can be used to transmit a target service and the first set of parameters comprises at least one of: information about a resource to perform resource detection, a condition parameter to determine the set of available resources or a transmission parameter of the target service; and report, through the terminal device, information about the set of resources available on at least one carrier to a network device. 2. METHOD, according to claim 1, characterized by the information about the resource to perform the resource detection comprise at least one among: information about a group of resources to perform the resource detection, information about a carrier to perform the detection resources, information about a subband to perform resource detection, information about a number of physical resource blocks (PRBs) to perform resource detection, information about a detection window to perform resource detection, or information about a resource selection window for selecting resources; and / or the condition parameter to determine the set of available resources comprise at least one of: a power threshold received from the shared physical secondary link channel reference signal (PSSCH-RSRP), a number of resources and a percentage of available resources in the available resource set, where the percentage of available resources is a ratio between a number of resources in the available resource set and a total number of resources in the detection window to perform resource detection; and / or the transmission parameter of the target service comprises at least one of the following parameters: information about a priority of the target service, information about a traffic volume of the target service, a transmission period of the target service, latency of the target service, a number of times of retransmission of the target service, a packet size of the target service or a modulation and encoding scheme for the target service. METHOD, according to either of claims 1 or 2, characterized in that it further comprises: receiving, by a physical layer of the terminal device, the first set of parameters transmitted by an upper layer of the terminal device; or receive, by the terminal device, the first set of parameters transmitted by the network device. 4, METHOD according to any one of claims 1 to 3, characterized in that it further comprises: reporting, by the terminal device, a second set of parameters for the network device, wherein the second set of parameters comprises at least one of: a busy channel ratio (CBR) for each of at least one carrier, a temporary storage status report (BSR), the target service transmission period, the target service priority or a target service latency requirement . 5. METHOD according to any one of claims 1 to 4, characterized by the reporting, by the terminal device, of information about the set of resources available in at least one carrier for a network device comprising: reporting, by the terminal device, the information about the set of resources available on at least one carrier for the network device using uplink control (UCI) information, a media access control (MAC) control element (MAC) or radio resource control (RRC). 6. METHOD according to any one of claims 1 to 5, characterized by the reporting, by the terminal device, of information about the set of resources available on at least one carrier for a network device comprising: reporting, by the terminal device, information support device while reporting information about the set of resources available on at least one carrier to the network device. METHOD, according to any one of claims 1 to 6, characterized by the reporting, by the terminal device, of information about the set of resources available in at least one carrier for a network device comprising: reporting, by the terminal device, a index of at least one candidate target resource in the set of resources available on at least one carrier for the network device, where an index of each candidate target resource in a set of resources available on each carrier is used to indicate a location for each candidate target resource in each carrier's detection window, W or indicate a location of each candidate target resource in each carrier's resource selection window, or indicate a location of each candidate target resource in a set of resources available on each carrier, or indicate a time-frequency resource location for each target candidate resource on each carrier. 8. TERMINAL DEVICE, characterized by comprising: a resource detection unit, configured to perform resource detection on at least one carrier based on a first set of parameters to obtain a set of resources available on at least one carrier, where a resource in a set of resources available on each carrier can be used to transmit a target service and the first set of parameters comprises at least one of: information about a resource to perform resource detection, a condition parameter to determine the set available resources or a target service transmission parameter; and a transceiver unit, configured to report, to a network device, information about the set of available resources that is obtained by the detection unit and that is on at least one carrier. 9. TERMINAL DEVICE, according to claim 8, characterized by the information about the resource to perform the resource detection comprise at least one of: information about a group of resources to perform the resource detection, information about a carrier to perform the detection resource detection, information about a subband to perform resource detection, information about a number of physical resource blocks (PRBs) to perform resource detection, information about a detection window to perform resource detection or information on a resource selection window to perform the resource selection; and / or the condition parameter to determine the set of available resources comprise at least one of: a power threshold received from the shared physical secondary link channel reference signal (PSSCH-RSRP), a number of resources and a percentage of available resources in the available resource set, where the percentage of available resources is a ratio between a number of resources in the available resource set and a total number of resources in the detection window to perform resource detection; and / or the transmission parameter of the target service comprises at least one of the following parameters: information about a priority of the target service, information about a traffic volume of the target service, a transmission period of the target service, latency of the target service, a number of times of retransmission of the target service, a packet size of the target service or a modulation and encoding scheme for the target service. 10. TERMINAL DEVICE, according to either of claims 8 or 9, characterized in that the transceiver unit is specifically configured to: receive, in a physical layer, the first set of parameters transmitted from an upper layer; or receive the first set of parameters transmitted by the network device. 11. TERMINAL DEVICE, according to claim 10, characterized in that the transceiver unit is additionally configured to: report a second set of parameters to the network device, in which the second set of parameters comprises at least one among: a channel ratio busy (CBR) of each of at least one carrier, a temporary storage status report (BSR), the transmission period of the target service, the priority of the target service or a latency requirement of the target service. 12. TERMINAL DEVICE, according to any one of claims 8 to 11, characterized in that the transceiver unit is specifically configured to: report information about the set of resources available on at least one carrier to the network device using information from uplink control (UCI), a media access control (MAC) control element (MAC) or radio resource control signaling (RRC). 13. TERMINAL DEVICE, according to any one of claims 8 to 12, characterized in that the transceiver unit is specifically configured to: report assistance information from the terminal device while reporting information about the set of resources available on at least one carrier to the device network. 14. TERMINAL DEVICE, according to any one of claims 8 to 13, characterized in that the transceiver unit is specifically configured to: report an index of at least one candidate target resource in the set of resources available on at least one carrier to the network device , where an index of each candidate target resource in a set of resources available on each carrier is used to indicate a location of each candidate target resource in each carrier's detection window, or indicate a location of each candidate target resource in the selection of resources for each carrier, or indicate a location of each candidate target resource in a set of resources available on each carrier, or indicate a time-frequency resource location of each candidate target resource on each carrier.